CN115085474A

CN115085474A - Brushless motor

Info

Publication number: CN115085474A
Application number: CN202210514009.9A
Authority: CN
Inventors: 孔春生; 王志鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-09-20

Abstract

The invention relates to the technical field of motors, in particular to a brushless motor which comprises a machine body shell, end covers, flanges, a stator, a rotating shaft and a rotor, wherein the end covers are fixedly arranged at two ends of the machine body shell, the flanges are fixedly arranged on the end covers, the stator is arranged in the machine body shell and fixedly arranged on the end covers, the stator is a hollow mechanism, one end of the rotating shaft is rotatably connected onto the end covers, the other end of the rotating shaft penetrates through the flanges and extends to the outer side, the rotor is fixedly arranged on the rotating shaft, and the rotor is arranged in the stator. The invention is provided with the water pipe, the steam-water separation membrane, the water tank and other mechanisms, when the motor works, the inside of the motor can gradually generate heat due to the rotation of the rotating shaft, the water pipe is wound on the stator to absorb the heat carried by the stator, the cooling water in the water pipe is evaporated by absorbing the heat, the cooling water is remained in the water pipe under the blocking effect of the steam-water separation membrane, and the steam is diffused to the air through the steam-water separation membrane.

Description

Brushless motor

Technical Field

The invention relates to the technical field of motors, in particular to a brushless motor.

Background

An electric motor is a device that converts electrical energy into mechanical energy. The electromagnetic power generating device utilizes an electrified coil to generate a rotating magnetic field and acts on a rotor to form magnetoelectric power rotating torque. The motors are classified into dc motors and ac motors according to the power sources used, and most of the motors in the power system are ac motors, which may be synchronous motors or asynchronous motors. The motor mainly comprises a stator and a rotor, and the direction of the forced movement of the electrified conducting wire in the magnetic field is related to the current direction and the magnetic induction line direction. The working principle of the motor is that the magnetic field exerts force on current to rotate the motor.

A conventional motor (CN 110380559A) includes a bottom casing having a plurality of air guiding grooves, a casing cover disposed on the bottom casing and defining a pivot space communicating with the air guiding grooves, a rotor rotatably disposed in the pivot space, a stator disposed in the pivot space and surrounding the rotor, and a casing covering the bottom casing and covering the casing cover. The rotor has a plurality of openings extending downwardly from the top surface to the bottom surface. When the rotor rotates relative to the stator, airflow can be introduced into the air guide groove to form active convection heat dissipation, so that the heat dissipation efficiency is improved, and the design of the air guide groove can avoid eddy current from being formed on the bottom shell, so that the condition of temperature rise or fault caused by the eddy current can be avoided.

Above-mentioned patent has set up the guide slot on the end casing under prior art's the condition, has realized the inside automatic heat dissipation of motor through the circulation of gas, has increased the practicality of motor. However, the above patent still has the drawback that the air guide groove is formed in the bottom shell, so that no matter whether a dustproof measure is added outside the air guide groove, dust in the air always enters the motor through the driving of the air flow and is further attached to internal parts of the motor, so that the internal parts of the motor are damaged, and the service life of the motor is shortened.

For this purpose, a brushless motor is proposed.

Disclosure of Invention

The present invention is directed to a brushless motor, which solves the problems of the prior art that the motor cannot actively dissipate heat and is not easy to be perforated.

In order to achieve the purpose, the invention provides the following technical scheme:

a brushless motor comprises a machine body shell, end covers, flanges, stators, rotating shafts and rotors, wherein the end covers are fixedly arranged at two ends of the machine body shell, the flanges are fixedly arranged on the end covers, the stators are arranged in the machine body shell and fixedly arranged on the end covers, the stators are hollow mechanisms, one end of each rotating shaft is rotatably connected onto the end covers, the other end of each rotating shaft penetrates through the flanges and extends to the outside, the rotors are fixedly arranged on the rotating shafts, the rotors are arranged in the stators, one end of each end cover is fixedly provided with a water tank, the middle of each water tank is fixedly provided with a partition plate, the stators are wound with water pipes, the water pipes are symmetrically provided with a plurality of ventilating pipes, the interiors of the ventilating pipes are fixedly provided with steam-water separation membranes, the ventilating pipes penetrate through two sides of the machine body shell and extend to the outside, and the side walls of the lower ends of the water tanks are provided with first water through ports, one end of the water pipe is communicated with the first water through hole, and the other end of the water pipe is communicated with the upper end of the water tank;

the utility model discloses a motor, including engine body shell, movable pipe, inner chamber and engine body shell, engine body shell's upper end is equipped with the movable tube, the movable tube is close to a plurality of shower nozzles of one end fixedly connected with of engine body shell, the inside of water tank is equipped with the water supply mechanism that is used for supplying water to the movable tube, the inner chamber has been seted up to the inside of end cover, the upper end of inner chamber and engine body shell is equipped with the actuating mechanism who is used for driving movable tube reciprocating motion, it has the second mouth of a river to begin on the upper end lateral wall of water tank, the inside at first mouth of a river and the second mouth of a river all is equipped with the control mechanism who is used for preventing rivers backward flow, be equipped with on the stator and be used for preventing the whole overheated control switch of motor.

Through setting up the water pipe, the catch water membrane, mechanisms such as water tank, when the motor during operation, the motor is inside can produce the heat gradually because the rotation of pivot, the cooling water in the water tank has flowed into in the water pipe by lower extreme water pipe mouth this moment, the water pipe is around establishing the heat that the stator was taken on the stator, the cooling water in the water pipe evaporates through absorbing the heat, the separation effect that the cooling water received the catch water membrane stays in the water pipe, vapor permeates the catch water membrane and gives off in to the air, the realization is to the inside thermal absorption of motor, thereby give off the heat.

Preferably, the water supply mechanism includes the piston of slidable mounting in the water tank inside, and the piston is located the upper end of baffle, the first telescopic link of one side fixedly connected with of piston, the one end fixed connection of first telescopic link is on the inner wall of water tank, the inside fixed mounting of end cover has the aqueduct, the one end and the second of aqueduct communicate, the other end of aqueduct runs through the top of end cover and communicates through hose and activity pipe, and the one end that the hose was kept away from to the activity pipe is encapsulated situation.

Through the arrangement of the piston, the movable pipe, the water guide pipe and other mechanisms, when cooling water in the water pipe absorbs heat and begins to evaporate, steam in the water pipe is not completely discharged due to the fact that the opening of the vent pipe on the water pipe, part of the steam continuously flows to the upper end of the water pipe along with water flow and enters the water tank through the steam-water separation membrane, the piston is pushed to compress the first telescopic rod to move under the pressure generated by the steam, the cooling water in the water tank enters the movable pipe through the water guide pipe under the pushing of the piston, the cooling water is sprayed to the machine body shell through the spray head at the lower end of the movable pipe, water is manually added into the water tank according to the amount of the water sprayed by the spray head, evaporation and heat dissipation are conducted on the surface of the motor, and the cooling of the outside of the motor is achieved.

Preferably, actuating mechanism includes bracing piece and the actuating lever of fixed mounting between two flanges, and the actuating lever locates one side of bracing piece, slidable mounting has passive slider on the bracing piece, the upper end fixed mounting of movable rod is in the bottom of passive slider, the spout has been seted up on the actuating lever, the guide arm of passive slider upper end slides in the spout, the inside of inner chamber is equipped with first belt pulley, and first belt pulley fixed mounting is in the pivot, the inside of end cover is seted up flutedly, and recess and inner chamber intercommunication, fixed mounting has the second belt pulley on the reciprocal lead screw, be equipped with the belt in the recess, and first belt pulley passes through belt drive with the second belt pulley and is connected.

Through setting up the bracing piece, the actuating lever, mechanisms such as first belt pulley, the rotation that utilizes the pivot drives first belt pulley and rotates, the transmission through the belt and drive the second belt pulley and rotate, and then drive the rotation of actuating lever, spout on the actuating lever is the level and smooth structure of continuity, spout on the actuating lever drives passive slider reciprocating motion when rotatory, and drive movable pipe round trip movement, the shower nozzle of movable rod bottom is with cooling water injection to engine body shell on, make engine body shell obtain the cooling, thereby accelerate the inside heat dissipation of motor, the realization is to the comprehensive cooling on motor surface.

Preferably, the control mechanism comprises a fixed plate fixedly installed inside the first water through opening, a second telescopic rod is fixedly installed on one side of the fixed plate, the width of the joint of the fixed plate and the second telescopic rod is the same as that of the joint of the fixed plate and the second telescopic rod, a trapezoidal piston is fixedly connected to one end of the second telescopic rod, a spring is sleeved on the second telescopic rod, and two ends of the spring are respectively and fixedly connected to the fixed plate and the trapezoidal piston.

Through setting up mechanisms such as fixed plate, spring, trapezoidal piston, under the action of gravity of cooling water in the water tank, promote trapezoidal piston compression second telescopic link and spring and remove, trapezoidal piston and first logical water gap separation and intercommunication water pipe and water tank, during the cooling water gets into the water pipe, after the cooling water is full of the water pipe, the first logical water gap of cooling water compression trapezoidal piston resealing in the water pipe afterwards to trapezoidal piston can completely cut off vapor and get into in the water tank when follow-up vapor generation.

Preferably, the control switch includes the electrically conductive slider of slidable mounting on the stator, one side fixed mounting of end cover has the conducting block, and conducting block and electrically conductive slider sliding connection, one side fixed connection of electrically conductive slider has expansion spring, expansion spring's one end fixed connection is on the end cover, electrically conductive slider and conducting block pass through wire and power electric connection.

Through setting up electrically conductive slider, the conducting block, mechanism such as expansion spring, when the motor is during operation for a long time, the heat that inside produced is not enough to take away the heat by the cooling water evaporation and dispel the heat to the air by the fin by oneself, expansion spring is made by the polypropylene resin material, polypropylene resin has the expanded characteristic of heat absorption, and then make expansion spring receive the influence of hot temperature and extend, thereby promote electrically conductive slider and slide on the stator, the circuit outage that forms when electrically conductive slider separates with the conducting block, the motor stop work, the realization is to the protection of motor.

Preferably, the transmission ratio of the first pulley to the second pulley is 2/3.

The speed of motor pivot is great, and consequently the speed of first belt pulley is also great, and the diameter of first belt pulley is less than the diameter of second belt pulley to the speed of second belt pulley is less for first belt pulley, thereby makes the rotational speed of actuating lever difficult too fast, makes the movable tube at motor upper end with slower speed round trip movement, realizes the abundant water spray cooling water in motor surface.

Compared with the prior art, the invention has the beneficial effects that:

1. through setting up the water pipe, the catch water membrane, mechanisms such as water tank, when the motor during operation, the motor is inside can produce the heat gradually because the rotation of pivot, the cooling water in the water tank has flowed into in the water pipe by lower extreme water pipe mouth this moment, the water pipe is around establishing the heat that the stator was taken on the stator, the cooling water in the water pipe evaporates through absorbing the heat, the separation effect that the cooling water received the catch water membrane stays in the water pipe, vapor permeates the catch water membrane and gives off in to the air, the realization is to the inside thermal absorption of motor, thereby give off the heat.

2. The water vapor generated in the water pipe is guided into the water tank on the upper half part by the arrangement of the piston, the movable pipe, the water guide pipe and other mechanisms, the piston is pushed to compress the first telescopic rod to move under the pressure generated by the water vapor, the cooling water in the water tank enters the movable pipe through the water guide pipe under the pushing of the piston, the cooling water is sprayed to the machine body shell through the spray head on the lower end of the movable pipe, the surface of the motor is subjected to evaporation and heat dissipation, and the cooling of the outside of the motor is realized.

3. Through setting up the bracing piece, the actuating lever, mechanism such as first belt pulley, the rotation that utilizes the pivot drives first belt pulley and rotates, drive the second belt pulley through the transmission of belt and rotate, and then drive the rotation of actuating lever, spout on the actuating lever drives passive slider reciprocating motion when rotatory, and drive movable tube round trip movement, the shower nozzle of movable rod bottom is with cooling water injection to engine body shell on, make engine body shell obtain the cooling, thereby accelerate the inside heat dissipation of motor, the realization is to the comprehensive cooling on motor surface.

4. Through setting up mechanisms such as fixed plate, spring, trapezoidal piston, under the action of gravity of cooling water in the water tank, promote trapezoidal piston compression second telescopic link and spring and remove, trapezoidal piston and first logical water gap separation and intercommunication water pipe and water tank, during the cooling water gets into the water pipe, after the cooling water is full of the water pipe, the first logical water gap of cooling water compression trapezoidal piston resealing in the water pipe afterwards to trapezoidal piston can completely cut off vapor and get into in the water tank when follow-up vapor generation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is a cross-sectional top view of the present invention;

FIG. 4 is a top cross-sectional view of the drive rod of the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 1 at A in accordance with the present invention;

FIG. 6 is an enlarged view of the structure of FIG. 2 at B in accordance with the present invention;

fig. 7 is an enlarged view of the structure at C in fig. 3 according to the present invention.

In the figure: 1. a body housing; 2. an end cap; 3. a flange; 4. a stator; 5. a rotating shaft; 6. a rotor; 7. a water tank; 8. a partition plate; 9. a water pipe; 10. a breather pipe; 11. a steam-water separation membrane; 12. a first water passage port; 13. a piston; 14. a first telescopic rod; 15. a second water vent; 16. a water conduit; 17. a movable tube; 18. a spray head; 19. a passive slider; 20. a drive rod; 21. an inner cavity; 22. a first pulley; 23. a groove; 24. a second pulley; 25. a belt; 26. a fixing plate; 27. a second telescopic rod; 28. a spring; 29. a trapezoidal piston; 30. a conductive slider; 31. a conductive block; 32. an expansion spring; 33. a chute; 34. a support rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, the present invention provides a brushless motor, which has the following technical scheme:

a brushless motor comprises a machine body shell 1, end covers 2, flanges 3, stators 4, a rotating shaft 5 and a rotor 6, wherein the end covers 2 are fixedly installed at two ends of the machine body shell 1, the flanges 3 are fixedly installed on the end covers 2, the stators 4 are arranged in the machine body shell 1 and fixedly installed on the end covers 2, the stators 4 are hollow mechanisms, one end of the rotating shaft 5 is rotatably connected onto the end covers 2, the other end of the rotating shaft 5 penetrates through the flanges 3 and extends to the outside, the rotor 6 is fixedly installed on the rotating shaft 5, the rotor 6 is arranged in the stator 4, a water tank 7 is fixedly installed in one end cover 2, a partition plate 8 is fixedly installed in the middle of the water tank 7, a water pipe 9 is wound on the stator 4, a plurality of vent pipes 10 are symmetrically arranged on the water pipe 9, a steam-water separation membrane 11 is fixedly installed in each of the plurality of vent pipes 10, and the vent pipes 10 penetrate through two sides of the machine body shell 1 and extend to the outside, a first water through hole 12 is formed in the side wall of the lower end of the water tank 7, one end of the water pipe 9 is communicated with the first water through hole 12, and the other end of the water pipe 9 is communicated with the upper end of the water tank 7.

Through setting up water pipe 9, water separation membrane 11, mechanisms such as water tank 7, when the motor during operation, the motor is inside can produce the heat gradually because the rotation of pivot 5, the cooling water in the water tank 7 has flowed into in the water pipe 9 by lower extreme water pipe mouth this moment, water pipe 9 is around establishing the heat that absorbs stator 4 and carry on stator 4, the cooling water in the water pipe 9 evaporates through absorbing the heat, the cooling water receives the separation effect of water separation membrane 11 and stays in water pipe 9, vapor permeates water separation membrane 11 and gives off to the air, the realization is to the inside thermal absorption of motor, thereby give off the heat.

Referring to fig. 1 and 2, as an embodiment of the present invention, a movable pipe 17 is disposed at an upper end of a machine body housing 1, a plurality of nozzles 18 are fixedly connected to one end of the movable pipe 17 close to the machine body housing 1, a water supply mechanism for supplying water into the movable pipe 17 is disposed inside a water tank 7, the water supply mechanism includes a piston 13 slidably mounted inside the water tank 7, the piston 13 is disposed at an upper end of a partition plate 8, a first telescopic rod 14 is fixedly connected to one side of the piston 13, one end of the first telescopic rod 14 is fixedly connected to an inner wall of the water tank 7, a water guide pipe 16 is fixedly mounted inside the end cover 2, one end of the water guide pipe 16 is communicated with a second water through port 15, the other end of the water guide pipe 16 penetrates through a top end of the end cover 2 and is communicated with the movable pipe 17 through a hose, and one end of the movable pipe 17 far away from the hose is in a sealed state.

By arranging the piston 13, the movable pipe 17, the water guide pipe 16 and other mechanisms, when cooling water in the water pipe 9 absorbs heat and begins to evaporate, steam in the water pipe 9 cannot be completely discharged due to the opening of the vent pipe 10 on the water pipe 9, so that part of the steam continuously flows to the upper port of the water pipe 9 along with water flow and enters the water tank 7 through the steam-water separation membrane 11, the piston 13 is pushed to compress the first telescopic rod 14 to move under the pressure generated by the steam, the cooling water in the water tank 7 enters the movable pipe 17 through the water guide pipe 16 under the pushing of the piston 13, the cooling water is sprayed to the engine body shell 1 through the spray head 18 at the lower end of the movable pipe 17, water is manually added into the water tank 7 according to the amount of the water sprayed by the spray head 18, and therefore, the surface of the motor is evaporated and radiated, and the cooling outside the motor is realized.

As an embodiment of the present invention, referring to fig. 1, 2, 3, and 4, the driving mechanism includes a supporting rod 34 and a driving rod 20 fixedly installed between two flanges, the driving rod 20 is installed at one side of the supporting rod 34, a driven slider 19 is installed on the supporting rod 34 in a sliding manner, an upper end of the movable rod 17 is fixedly installed at a bottom of the driven slider 19, a sliding slot 33 is opened on the driving rod 20, a guide rod at an upper end of the driven slider 19 slides in the sliding slot 33, a first belt pulley 22 is installed inside the inner cavity 21, the first belt pulley 22 is fixedly installed on the rotating shaft 5, a groove 23 is opened inside the end cover 2, the groove 23 is communicated with the inner cavity 21, a second belt pulley 24 is fixedly installed on the driving rod 20, a belt 25 is installed inside the groove 23, and the first belt pulley 22 is in transmission connection with the second belt pulley 24 through the belt 25.

Through setting up bracing piece 34, actuating lever 20, mechanisms such as first belt pulley 22, the rotation that utilizes pivot 5 drives first belt pulley 22 and rotates, drive second belt pulley 24 through the transmission of belt 25 and rotate, and then drive the rotation of actuating lever 20, spout 33 on the actuating lever 20 is the smooth structure of continuation shape, spout 33 on the actuating lever 20 drives passive slider 19 reciprocating motion when rotatory, and drive movable pipe 17 round trip movement, the shower nozzle of movable rod 17 bottom is with cooling water injection to engine body shell 1 on, make engine body shell 1 obtain the cooling, thereby the inside heat dissipation of accelerating motor, the realization is to the comprehensive cooling on motor surface.

Referring to fig. 2 and 5, in an embodiment of the present invention, a second water through opening 15 is formed on a side wall of an upper end of a water tank 7, a control mechanism for preventing backflow of water is disposed inside each of a first water through opening 12 and a second water through opening 15, the control mechanism includes a fixed plate 26 fixedly mounted inside the first water through opening 12, a second telescopic rod 27 is fixedly mounted on one side of the fixed plate 26, a width of a connection portion between the fixed plate 26 and the second telescopic rod 27 is the same, a trapezoidal piston 29 is fixedly connected to one end of the second telescopic rod 27, a spring 28 is sleeved on the second telescopic rod 27, and two ends of the spring 28 are respectively fixedly connected to the fixed plate 26 and the trapezoidal piston 29.

Through the arrangement of the fixing plate 26, the spring 28, the trapezoidal piston 29 and other mechanisms, under the action of the gravity of cooling water in the water tank 7, the trapezoidal piston 29 is pushed to compress the second telescopic rod 27 and the spring 28 to move, the trapezoidal piston 29 is separated from the first water through hole 12 to communicate the water pipe 9 with the water tank 7, the cooling water enters the water pipe 9, after the water pipe 9 is filled with the cooling water, under the action of water and steam in the water pipe 9, the extrusion forces on two sides of the trapezoidal piston 29 are approximately balanced, then the cooling water in the water pipe 9 compresses the trapezoidal piston 29 to seal the first water through hole 12 again, and the trapezoidal piston 29 can isolate water vapor from entering the water tank 7 when the water vapor is generated subsequently.

Referring to fig. 2 and 3, as an embodiment of the present invention, the control switch includes a conductive slider 30 slidably mounted on the stator 4, a conductive block 31 is fixedly mounted on one side of the end cap 2, the conductive block 31 is slidably connected to the conductive slider 30, an expansion spring 32 is fixedly connected to one side of the conductive slider 30, one end of the expansion spring 32 is fixedly connected to the end cap 2, and the conductive slider 30 and the conductive block 31 are electrically connected to a power supply through a conductive wire.

Through setting up mechanisms such as electrically conductive slider 30, conducting block 31, expansion spring 32, when the motor works for a long time, the heat that inside produced is not enough to take away the heat by the cooling water evaporation and dispel the heat to the air by the fin by oneself, expansion spring 32 is made by polypropylene resin material, polypropylene resin has the expanded characteristic of heat absorption, and then make expansion spring 32 receive the influence of hot temperature and extend, thereby promote electrically conductive slider 30 and slide on stator 4, the return circuit outage that forms when electrically conductive slider 30 separates with conducting block 31, the motor stop work, realize the protection to the motor.

Referring to fig. 2, as an embodiment of the present invention, the transmission ratio of the first pulley 22 to the second pulley 24 is 2/3.

The speed of the motor rotating shaft 5 is higher, so that the speed of the first belt pulley 22 is also higher, the diameter of the first belt pulley 22 is smaller than that of the second belt pulley 24, the speed of the second belt pulley 24 is smaller than that of the first belt pulley 22, the rotating speed of the driving rod 20 is not too fast, the movable pipe 17 moves back and forth at the upper end of the motor at a slower speed, and the purpose of fully spraying cooling water on the surface of the motor is achieved.

The working principle is as follows: when the motor works, the inside of the motor can generate heat gradually due to the rotation of the rotating shaft 5, at the moment, cooling water in the water tank 7 flows into the water pipe 9 from a water pipe opening at the lower end, the water pipe 9 is wound on the stator 4 to absorb the heat carried by the stator 4, the cooling water in the water pipe 9 is evaporated by absorbing the heat, the cooling water is retained in the water pipe 9 under the blocking action of the steam-water separation membrane 11, the steam is diffused into the air by permeating the steam-water separation membrane 11, the generated steam in the water pipe 9 is guided into the water tank 7 at the upper half part, the piston 13 is pushed to compress the first telescopic rod 14 to move under the pressure generated by the steam, the cooling water in the water tank 7 enters the movable pipe 17 from the water guide pipe 16 under the pushing of the piston 13, the cooling water is sprayed to the machine body shell 1 from the spray head 18 at the lower end of the movable pipe 17, the first belt pulley 22 is driven to rotate by the rotation of the rotating shaft 5, and the second belt 24 is driven by the belt 25 to rotate, further driving the driving rod 20 to rotate, the slide groove 33 on the driving rod 20 drives the driven slide block 19 to reciprocate when rotating, and drives the movable pipe 17 to reciprocate, the spray head at the bottom of the movable rod 17 sprays cooling water onto the machine body shell 1, so that the machine body shell 1 is cooled, under the action of the gravity of the cooling water in the water tank 7, the trapezoidal piston 29 is pushed to compress the second telescopic rod 27 and the spring 28 to move, the trapezoidal piston 29 is separated from the first water through hole 12 to be communicated with the water pipe 9 and the water tank 7, the cooling water enters the water pipe 9, after the cooling water is filled in the water pipe 9, the cooling water in the water pipe 9 compresses the trapezoidal piston 29 to seal the first water through hole 12 again, and the trapezoidal piston 29 can isolate water vapor from the water tank 7 when subsequent water vapor is generated, when the motor works for a long time, the heat generated inside is not enough to be taken away by the evaporation heat of the cooling water and be automatically radiated to the air by the radiating fins, the expansion spring 32 is extended by the influence of the heat temperature, thereby pushing the conductive slider 30 to slide on the stator 4, and when the conductive slider 30 is separated from the conductive block 31, the formed loop is cut off, and the motor stops working.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a brushless motor, including engine body shell (1), end cover (2), flange (3), stator (4), pivot (5) and rotor (6), the both ends fixed mounting of engine body shell (1) has end cover (2), flange (3) fixed mounting is on end cover (2), the inside and fixed mounting that engine body shell (1) were located in stator (4) are on end cover (2), stator (4) are cavity mechanism, the one end of pivot (5) is rotated and is connected on end cover (2), the other end of pivot (5) runs through flange (3) and extends to the outside, rotor (6) fixed mounting is on pivot (5), and the inside of stator (4) is located in rotor (6), its characterized in that: a water tank (7) is fixedly mounted inside one of the end covers (2), a partition plate (8) is fixedly mounted in the middle of the water tank (7), a water pipe (9) is arranged on the stator (4) in a winding mode, a plurality of vent pipes (10) are symmetrically arranged on the water pipe (9), a steam-water separation membrane (11) is fixedly mounted inside each of the vent pipes (10), the vent pipes (10) penetrate through two sides of the engine body shell (1) and extend to the outside, a first water through hole (12) is formed in the side wall of the lower end of the water tank (7), one end of the water pipe (9) is communicated with the first water through hole (12), and the other end of the water pipe (9) is communicated with the upper end of the water tank (7);

the upper end of engine body shell (1) is equipped with movable tube (17), a plurality of shower nozzles (18) of one end fixedly connected with that movable tube (17) are close to engine body shell (1), the inside of water tank (7) is equipped with the water supply mechanism that is used for supplying water in to movable tube (17), inner chamber (21) have been seted up to the inside of end cover (2), the upper end of inner chamber (21) and engine body shell (1) is equipped with the actuating mechanism who is used for driving movable tube (17) reciprocating motion, second water passage mouth (15) begin to have on the upper end lateral wall of water tank (7), the inside of first water passage mouth (12) and second water passage mouth (15) all is equipped with the control mechanism who is used for preventing the rivers backward flow, be equipped with on stator (4) and be used for preventing the whole overheated control switch of motor.

2. A brushless motor according to claim 1, wherein: the water supply mechanism includes piston (13) of slidable mounting in water tank (7) inside, and piston (13) are located the upper end of baffle (8), the first telescopic link of one side fixedly connected with (14) of piston (13), the one end fixed connection of first telescopic link (14) is on the inner wall of water tank (7), the inside fixed mounting of end cover (2) has aqueduct (16), the one end and the second mouth of a river (15) intercommunication of aqueduct (16), the other end of aqueduct (16) runs through the top of end cover (2) and communicates through hose and movable tube (17), and the one end that the hose was kept away from in movable tube (17) is encapsulated situation.

3. A brushless motor according to claim 2, wherein: the driving mechanism comprises a supporting rod (34) and a driving rod (20) which are fixedly installed between two flanges, the driving rod (20) is arranged on one side of the supporting rod (34), a driven sliding block (19) is installed on the supporting rod (34) in a sliding mode, the upper end of a movable rod (17) is fixedly installed at the bottom of the driven sliding block (19), a sliding groove (33) is formed in the driving rod (20), a guide rod at the upper end of the driven sliding block (19) slides in the sliding groove (33), a first belt pulley (22) is arranged inside an inner cavity (21), the first belt pulley (22) is fixedly installed on a rotating shaft (5), a groove (23) is formed in the end cover (2), the groove (23) is communicated with the inner cavity (21), a second belt pulley (24) is fixedly installed on the reciprocating lead screw (20), and a belt (25) is arranged in the groove (23), and the first belt pulley (22) is in transmission connection with the second belt pulley (24) through a belt (25).

4. A brushless motor according to claim 1, wherein: control mechanism includes fixed plate (26) of fixed mounting in first water service mouth (12) inside, one side fixed mounting of fixed plate (26) has second telescopic link (27), and fixed plate (26) and second telescopic link (27) are the same with the width of its junction, the one end fixedly connected with trapezoidal piston (29) of second telescopic link (27), the cover is equipped with spring (28) on second telescopic link (27), and the both ends difference fixed connection of spring (28) is on fixed plate (26) and trapezoidal piston (29).

5. A brushless motor according to claim 1, wherein: the control switch comprises a conductive sliding block (30) which is slidably mounted on a stator (4), a conductive block (31) is fixedly mounted on one side of the end cover (2), the conductive block (31) is slidably connected with the conductive sliding block (30), an expansion spring (32) is fixedly connected to one side of the conductive sliding block (30), one end of the expansion spring (32) is fixedly connected onto the end cover (2), and the conductive sliding block (30) is electrically connected with a power supply through a wire and the conductive block (31).

6. A brushless motor according to claim 3, wherein: the transmission ratio of the first belt pulley (22) to the second belt pulley (24) is 2/3.